An unexpected transformation into a girl with tiger ears! Momoyama Richou is an aspiring novelist and high school student. After suffering a major blow to his ego through a reality check, he found himself contracting "Beastification Syndrome." Tiger ears? Check. A tail? Yup. Becoming a girl on top of that? Just a nice addition. How will he live his life from now on? Find out in this wild comedy filled with transformations into beast people and gender-swapping!!!